<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        *{
            padding:0;
            margin: 0
        }
        body{
            overflow: hidden;
        }
        #mycanvas{
            background: #ccc
        }
    </style>
</head>
<body>
    <canvas id="mycanvas"></canvas>
</body>
</html>
<script src="js/game.js"></script>
<script>
    var game = new game({
        "id": "#mycanvas",
        "RUrl": "js/R.json"        
    })
</script>